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Application of pecan sterol extractive in preparation of anti-inflammatory materials

A technology of hickory sterol and walnut sterol, which is applied in the field of deep processing and comprehensive utilization of agricultural and sideline products, can solve the problems of consuming flammable organic solvents, low product purity, sterol decomposition, etc., and achieve high quality, simple process operation, and stable quality Effect

Active Publication Date: 2014-06-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these processes are not ideal enough, or consume a large amount of flammable organic solvents, or the product purity is not high, or high temperature easily decomposes sterols

Method used

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  • Application of pecan sterol extractive in preparation of anti-inflammatory materials
  • Application of pecan sterol extractive in preparation of anti-inflammatory materials
  • Application of pecan sterol extractive in preparation of anti-inflammatory materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Example 1. A preparation method of pecan sterol extract:

[0054] After peeling the Lin'an pecans, the pecan kernels are beaten into a pulp, dried initially, and then dried with a microwave to a moisture content of 5% (wt%), crushed into 5 kg of 20 mesh pecan powder as raw materials, and Put it into the supercritical extraction kettle, heat up to 50℃, start the plunger pump to pump CO 2 , Enter the extraction kettle through the preheater, when the pressure reaches 25MPa, start the cycle; turn on the entrainer pump, so that 10% of the raw material weight ethanol enters the extraction kettle at the same time after passing through the preheater; during the cycle, CO 2 And the extract is decompressed in the separator, the extract is separated out in the separator, and CO 2 Recycling, separation kettle 1 set separation pressure 8MPa, temperature 40℃, separation kettle 2 set separation pressure 5MPa, temperature 30℃; after extraction 4h, take out 60g extract from separation kettle...

Embodiment 2

[0059] Example 2. A preparation method of pecan sterol extract:

[0060] The pecan shells are initially dried and dried with hot air (70~90℃) to a moisture content of 5%, crushed into 5kg of 20 mesh pecan shell powder as raw materials, and placed in a supercritical extraction kettle, and heated To 60℃, start the plunger pump to pump CO 2 , Enter the extraction kettle through the preheater, when the pressure reaches 30MPa, start the cycle; turn on the entrainer pump, so that 10% acetone enters the extraction kettle at the same time after passing through the preheater; during the cycle, CO 2 And the extract is decompressed in the separator, the extract is separated out in the separator, and CO 2 For recycling, the separation tank 1 is set at 8MPa and the temperature is 45°C, and the separation tank 2 is set at 5MPa and the temperature is 30°C; after 2.5 hours of extraction, 35g of the extract is taken out of the separation kettles 1 and 2. The yield was 0.7%. After low-temperature d...

Embodiment 3

[0062] Example 3. A preparation method of pecan sterol extract:

[0063] After crushing Yunnan pecan kernels into pulp, squeezing to remove water and preliminarily drying, using microwave drying to moisture content of 5%, crushed into 20 mesh pecan kernel powder 6kg, and put it in the supercritical extraction kettle , Heat up to 45℃, start the plunger to pump CO 2 , Enter the extraction kettle through the preheater, when the pressure reaches 20MPa, the cycle starts; during the cycle, CO 2 And the extract is decompressed in the separator, the extract is separated out in the separator, and CO 2 For recycling, the separation vessel 1 is set to separate pressure of 6MPa and temperature of 35°C, and separation vessel 2 is set to separate pressure of 5MPa and temperature of 30°C; after extraction for 1 hour, 60g of extract is taken out of separation vessels 1 and 2 to obtain The rate was 1.0%. After low-temperature drying, 49g of pecan sterol extract was obtained; the machine was shut d...

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Abstract

The invention discloses an application of a pecan sterol extractive in preparation of anti-inflammatory materials. The anti-inflammatory materials comprise anti-inflammatory drugs, anti-inflammatory daily cosmetics or anti-inflammatory healthcare products. A weight content of a total sterol in the pecan sterol extractive is 10-50%; the total sterol comprises beta-sitosterol, fucosterol, campesterol and stigmasterol; a weight content of the sitosterol in the total sterol is 70-95%; and a weight ratio of the beta-sitosterol to the fucosterol to the campesterol to the stigmasterol is (70-95):(1-10):(2-12):(1-15).

Description

Technical field [0001] The invention relates to the field of deep processing and comprehensive utilization of agricultural and sideline products. More specifically, it relates to the use of a plant sterol extract extracted from pecan. Background technique [0002] Carya, also known as "little walnut" or walnut tree, is an endangered plant under national level 3 protection. It belongs to Juglans and Juglans. It originated in the Tertiary and Cretaceous and is one of the oldest groups in angiosperms. Hickory grows in a natural environment with superior climate, fertile soil and lush vegetation. It is a pure wild fruit. It is a natural green food that is nurtured by the spiritual energy of the mountains and does not have any pollution. There are many types of pecans, about 30 species, mainly produced in America. my country has 5 species of Lin'an pecan, Dabie pecan, Hunan pecan, Guizhou pecan and Yunnan pecan, and American pecan is introduced and cultivated from America. Pecans a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K31/575A61K8/63A61P29/00A61P3/06A23L1/30A23L33/11
Inventor 陆柏益周菲杨佳佳胡银洲毛淑琴蒋易蓉洪雅雯
Owner ZHEJIANG UNIV
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